Badiatob metee



Oct. 2, 1923. 1,469,445

M. w. RYAN ET Al.

RADIATOR METER Filed Jan. 6, 1922 Patented Oct. 2, 1923.

PATENT( OFFICE.l

MICHAEL W. vRYAN AND MICHAEL UTTENDORFER, OF SEATTLE, WASHINGTON.

yRADIATOR METER.

Application filedvJanuary 6, 1922: Serial No. 527,466.v

To QZZ whomv ir'. may concern.'

Be it known that we, MCHAEL W. RYAN and MICHAEL UTTENDORFER, citizens ofthe United States, residing at Seattle, county of King, and State oilvashington, have invent-cd a new and useful Radiator Meter; and we doyhereby declare that the following is a i'ull7 clear, and exactsneciiication, such as will enable others skilled in the art to' whichit appertains to .make andV use the same.

The invention is a device which may be Y screwed into the top of aradiator cap by which the driver `of the automobile may determine theapproximate temperature ot' the water in the radiator.

The object of the invention is to provide a device for indicating theapproximate temperature or' the water in an automobile radiator in whichis a dise which is operated by a vertical piece of thermostatic metal sothat it will rotate and' appear in a hole through the device.

Another object of the invention is to provide a device which may beplaced on the radiator of an automobile by which the driver may readilydetermine the rise of the temperature in the radiator in which is anindicator operated by apiece oi' thermostatic material inside of acasing projecting down into the top of the radiator.

r And a still further .object of the invention is to provide a devicewith an indicator inside of it operated by a piece of thermostaticmaterial-which as the .temperature rises willrotate'the indicator in onedirection and as the temperature falls will rotate the indicator in theopposite direction.

1With these ends in view the invention embodies a casing with a threadedshank on its lower side which maybe screwed into the top oi a. radiatorcap having a movable disc or blade pivotally mounted in the casing and aypiece of thermostatic material mounted in the lower part of the casingthe upper end of which is suitably connect# ed to the disc or `bla-de sothat as the temperature ail'ects the piece of thermostatic material itwill cause the disc or blade to rotate.

Other features and advantages of the invention will appear from thefollowinof description taken in connection with the dzrawings7 whereinFigure 1 is a iront elevation. l

its fixed end.

4Figure 2 is a front elevation with the -g'lassand first disc removedand the lower part broken away on the center line.

Figure 3 is a cross section on the center line. f y

Figure 4 is a Viront elevation with part broken away showing analternate means for operating the Ablade by the piece of thermostaticmaterial.

Figure 5 is u, part section showing another alternate means ofconnectingl the thermostatic material to the blade.

In the drawings we have shown our meter as it would appear in use inFigure 1 wherein numeral 1 indicates the casing which has a shank 2 onits lower side on which are the threads 3 by which it may be screwedinto the top of the radiator cap. Inside ot the shank 2 is a cylindricalhole 4 in which is a piece ot' thermostatic material 5'which isconstructed of two thin pieces of metal having diiierent coeflicients ofexpansion so that as its'temperat-ure is raised one of the metals willexpand more than the other and cause its free end to move in an arcabout The lower end of the thermostatic material 5 is held by a screw 6to a `plate 7 which is fastened in arecess 8 at the lower end of theshank 2. The upper end of the thermostatic piece ot material 5 is bentin the shape of a U as shown in Figure 2and has two holes 9 and 10through the sides .oit the U through which the rod 11 passes and isfric-t-ionally held by bending the outer end of the U slightly outward.

`The upper end of the rod 11 may be bent as shown in Figure 2 and hasaprojection 12 on it which projects through a slot 13 in a disc 14 andthis disc is pivotally mounted on a pin 15V in the upper part of thecasing 1. This pin is held on a disc 1G which is fastened in the casingand on the opposite side of the disc 14 is another disc 17 similar tothe disc 16. The disc 17 its in the recess 18 so that it may be removedand on the outside of the discs 16 and 17 are pieces oi glass 19 whichare held in place by wires 20 in notches 21 in the casing 1.

The discs 16 and 17 have openings 22 and 23 in them and the disc 14 hasa section 24 cut out to clear the openings 22 and 23. The lower side ofthe disc 14 has another opening 25 in it to correspond with the opening24 so that it will balance. One side of the disc 14 may be colored redand the opposite side greenras shown in Figure 2 andon the green sidethewords free In the arrangement shown in Eigure/t. the'blade 26corresponding to the disc 1l.

may be mountedupon a pin 27 which may be held in the casing and thelowervside.

ot the blade 26 may have two lugs 28 and 29 projecting downward on itformingi a,r

V- shaped groove 30 into which the upper 'end ofthe `piece oftherinostatic material may project.

lVhen the temperature rises the piece of "thermoetatic material willmove laterally and-cause the blade 26 to rotate so that it' will appearthrough the opening 31; The blade` 26may be made with a section on theopposite sideof the hole 31 lso thatasthe temperature falls and the endof the thermostatic material moves in the opposite direction theopposite-section or" Y theI blade 26 whiclrrnay `be of adifferent CsoCIL

color will appear on theV opposite sidey ot thejopening 31.V

Inthe arrangement shown 1n Figure 5 ythe blade 32 corresponding; tothedisc 14C maybe made with a hub 33 onfitin which is a hole 34 which isrotatably mounted on the pin 35. in the casing. In the upper side ofthe-blade 32 .is anopening 3G which permits the opening 31 to be fullyopen when the: blade is in. the position shown. On the lower side ofithehub 33de; afprojection 87, thev lowerend of which isfconnectedtoawbar'BS ythroughapin 39. The opposite I endofthe bar 38isfA connectedby a pin 40 to' the upper end ofr the. thermostat-io piece ofthermostatic material -to the blade. Another mayl be in the shapefof theblade, another may be in VtheuSefofdifferent Words onv the, discs 16 and17 or on the blade, another may beintheshape .of the.A opening throughthe casing or the use oftwo holes instead of one and still another maybe in the design or shape of the casing. The constructionwill be readilyunderstood from the foregoing description. To use the device itlnay belplacedin the top ofanautoniobile radiator: cap and as the temperaturechanges the upper or free end oi the' thermostatic materialy will movelaterally andcause the disc or blade to rotate about iits-pivot so thatit will show through the opening` and inform the drivel-'of the change.in the temperature ofthe water.

Having thus describedthe inventionwhat we claim as newl and desire tosecure by Letters Patent is A. device for indicating the temperature ofthe water inA a motor vehicle radiator having a plate with openings.init pivoted inA a casing thathas windows through it to correspond withythe openings in the' plate when the plate isV in the normal position,

.said casing having :i tubular shaped 1section projecting from itslower` side',I whichzsection isy threaded atits exterior; apieceof'thermostatic material standing` practically verticallin .the tubularshapedse'ctionland having its lower end attached tothe lower end?` ofthe` section;v which. is closed.;` a bar attached .to the upper: end ofthe thermostatic which" will, show` througlrthzes openings in':

the casing as; theiplate f is; rotatedf by' the Y lateral motion'iresultingy from the-@expansion and contraction'v of thethermostaticelement MICHAEL WV. RYAN. .Y MICHAEL UTTENDORFlfR..V

